Self-inking hand-stamp



(No Model.)

L. G. ANDREWS.

SELF INKING HAND STAMP. No. 387.032. Patented July 31, 1888.

// INVEJVTOR,

Attorney UNITED STATES PATENT OFFICE.

LEMUEL G. ANDREVS, OF ROCK ISLAND, ILLINOIS.

SELF-INKING HAN D-STAMP.

SPECIFICATION forming part of Letters Patent No. 387,032, dated July 31, 1888.

Application led December 23, 1887. Serial No. 259,836. (No model.)

`To all whom it may concern,.-

Beit known that I, LEM'UEL G. ANDREWS, a citizen of the United States of America, residing at Rock Island, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Self- Inking Hand-Stamps; and I do hereby declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertans to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to certain new and useful improvements in self-inking handstamps; and it consists in the novel construction and arrangement of the parts thereof, which will he more fully hereinafter described,and pointed out in the claims.

The object of my invention is to provide a simple and effectively constructed handstamp which is positively acting, strong, and durable, easily handled and operated, and comparatively inexpensive in manufacture. I attain this object by the construction illustrated in the accompanying drawings,wherein like letters of reference indicate similar parts in the several views, and in which- Figure lis a perspective view of my improved hand-stamp. Fig. 2 is a longitudinal vertical section thereof. Fig. 3 is a detail perspective view of the yoke. Fig. 4 is aside elevation of my improved stamp, showing the parts in the position assumed in the act of printing.

A indicates the base-rest, having a suitable recess, a, on one side thereof for the admission of a pad or stamping-surface, which will form a rest for the material to be stamped. Secured to this base is a metallic cylinder, B, having vertical slots b in each side thereof and formed in alignment. The upper part of the cylinder B is provided with a cap, C, which has an inking pad or plate, O', integrally formed therewith.

To one side of the cylinder B, immediately under the inkiug-pad C', one end of a strap spring, S, is secured, the other end of which extends around a semicircular yoke, D, and

is secured to the opposite side thereof. The said semicircular yoke D is secured to the type plate B', which normally rests against the inking-pad, as shown in Figs. l and 2. The said sernicircular yoke is formed with a central eye, d, which is engaged by the outer bent ends of the yoke E, which is constructed, preferably, of rectangular form, and at its inner ends extends through the slots b in the cylinder B, and is secured to the hand plunger or rod F through the medium of a screw-threaded socket formed with the said yoke, as shown in Fig. 2.

The yoke E rests upon the upper portion of a coiled spring, S, mounted within the cylinder B, and which acts as an auxiliary forforcing the plunger upward after a depression thereof.

The operation of my improved stamp is as follows: Upon depressing the plunger the yoke E draws the plate B away from the inkingpad C', and as said plate descends the strap spring S, connected thereto, as hcreinbefore set forth, turns the said plate over and presents the stamping-surface to the matter to be stamped. In this operation the said strapspring slightly twists, and when the plunger is released the plate B', carrying the type, is drawn upward against the inking-pad in its normal position, as will be readily understood.

Having thus described my invention, what I claim as new isl. The combinatiomwith a cylinder mount ed upon a base, as set forth, and having a coiled spring mounted therein, of the plunger secured to a suitable yoke, whose inner ends pass through the slots formed in the cylinder, the type-plate adapted to revolve when the plunger is depressed, and stationarilymounted inking-pad integrally formed with the cap of said cylinder, substantially as described.

2. The combination of the base A., recessed as set forth, the cylinder mounted thereon having vertical slots, and a coiled spring, S', mounted therein, the stationarily-monnted inking-pad C', integrally formed with the cap O of the said cylinder, the hand-plunger, rectangular yoke, to which said hand-plunger is secured and which bears upon the top of the coiled spring S Within the cylinder, the semi- I In testimony whereof I afix my signature in circular yoke D, to which the outer ends of presence of two Witnesses. the rectangular yoke are secured, the type- Y plate carried by Said semicircular yoke, and LEMUEL G. ANDREWS.

5 the strap spring S, secured ab one end to the cylinder and at its opposite end to the outer Vitnesses: side of the semiciroular yoke D, as sen forth, E. H. SEIFFERT, substantially as described. GHAS. S. KERNS. 

